IT7949677A0 - VARIABLE MASK DEVICE FOR ILLUMINATOR OR SIMILAR - Google Patents

VARIABLE MASK DEVICE FOR ILLUMINATOR OR SIMILAR

Info

Publication number
IT7949677A0
IT7949677A0 IT7949677A IT4967779A IT7949677A0 IT 7949677 A0 IT7949677 A0 IT 7949677A0 IT 7949677 A IT7949677 A IT 7949677A IT 4967779 A IT4967779 A IT 4967779A IT 7949677 A0 IT7949677 A0 IT 7949677A0
Authority
IT
Italy
Prior art keywords
illuminator
similar
mask device
variable mask
variable
Prior art date
Application number
IT7949677A
Other languages
Italian (it)
Other versions
IT1162344B (en
Original Assignee
Arai Akira
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arai Akira filed Critical Arai Akira
Publication of IT7949677A0 publication Critical patent/IT7949677A0/en
Application granted granted Critical
Publication of IT1162344B publication Critical patent/IT1162344B/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • F21V11/18—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed movable, e.g. flaps, slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Projection Apparatus (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
IT49677/79A 1978-07-10 1979-07-06 VARIABLE MASK DEVICE FOR ILLUMINATOR OR SIMILAR IT1162344B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53084368A JPS5926081B2 (en) 1978-07-10 1978-07-10 Variable mask device for illuminators, etc.

Publications (2)

Publication Number Publication Date
IT7949677A0 true IT7949677A0 (en) 1979-07-06
IT1162344B IT1162344B (en) 1987-03-25

Family

ID=13828577

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49677/79A IT1162344B (en) 1978-07-10 1979-07-06 VARIABLE MASK DEVICE FOR ILLUMINATOR OR SIMILAR

Country Status (6)

Country Link
US (1) US4468720A (en)
JP (1) JPS5926081B2 (en)
DE (1) DE2927042A1 (en)
FR (1) FR2431655A1 (en)
GB (1) GB2036282B (en)
IT (1) IT1162344B (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8413139D0 (en) * 1984-05-23 1984-06-27 Unisplay Sa Enhanced matrix displays
JPS60134201U (en) * 1984-02-20 1985-09-06 松下電工株式会社 cutter spot light
EP0180665A1 (en) * 1984-11-06 1986-05-14 Inlines Productions S.A. Lighting device with framing gate
US4893225A (en) * 1986-12-08 1990-01-09 Altman Stage Lighting Co., Inc. Color changer
JPH01306549A (en) * 1988-06-02 1989-12-11 Central Glass Co Ltd Masking member
GB2265975B (en) * 1992-03-31 1996-02-21 Strand Lighting Ltd Luminaire
US5345371A (en) * 1992-11-05 1994-09-06 Cunningham David W Lighting fixture
DE4300056C2 (en) * 1993-01-04 1998-07-16 Weigert Dedo Film Gmbh Barndoor for one lamp
US5379083A (en) * 1994-02-15 1995-01-03 Raychem Corporation Projector
US5651602A (en) * 1994-11-17 1997-07-29 Joseph N. Tawil Portable light diffuser
USD387866S (en) * 1995-11-22 1997-12-16 Maxant Mask for supporting and displaying mammography film
US5818624A (en) * 1995-12-27 1998-10-06 Patterson; John Mask for viewing reduced-size radiographic film, particularly mammography film
US5924783A (en) * 1997-07-24 1999-07-20 Raychem Corporation System for controlling contrast in projection displays
US6422720B2 (en) * 1998-02-20 2002-07-23 Lsi Industries Inc. Retrofit canopy luminaire and method of installing same
EP2018587A4 (en) * 1999-09-22 2009-01-28 Light & Sound Design Ltd Multilayer control of gobo shape
US7161562B1 (en) * 1999-09-22 2007-01-09 Production Resource Group, L.L.C. Multilayer control of gobo shape
US9894251B2 (en) 1999-09-22 2018-02-13 Production Resource Group, L.L.C Multilayer control of gobo shape
US6832845B1 (en) * 2001-06-14 2004-12-21 Thomas E. Kretzschmar Contour light projector
US6550939B2 (en) 2001-09-12 2003-04-22 Vari-Lite, Inc. Light beam shutter apparatus
US6942358B2 (en) * 2002-03-29 2005-09-13 Arista Enterprises, Inc. Light emitting diode (LED) flashlight
ITMI20021625A1 (en) * 2002-07-23 2004-01-23 Coemar Spa BRIGHT PROJECTOR WITH MEANS TO PERIMETALLY DELIMIT THE BEAM OF LIGHT EMITTED
US7556402B2 (en) * 2004-03-29 2009-07-07 Cooper Technologies Company Direct-indirect luminaire with shutter
KR100689315B1 (en) * 2004-08-10 2007-03-08 엘지.필립스 엘시디 주식회사 Device for crystallizing silicon thin layer and method for crystallizing using the same
US7195359B1 (en) 2005-01-28 2007-03-27 Conti Mario W Framing projector with adjustable shutter
US7517088B1 (en) 2005-11-28 2009-04-14 Thomas E. Kretzschmar Light projector
US20070211226A1 (en) * 2006-03-09 2007-09-13 Ho Heng C Light leakage preventive structure for front projector
JP5261087B2 (en) * 2008-09-08 2013-08-14 三洋電機株式会社 Electronic device with open / close door
AU2009200881A1 (en) * 2009-03-06 2010-09-23 Selecon New Zealand Limited Shutter lock
CN104321587A (en) 2012-03-18 2015-01-28 罗布照明有限公司 Beam framing system for an automated luminaire
EP3227601B1 (en) * 2014-10-01 2021-12-15 Robe Lighting s.r.o. Collimation and homogenization system for an led luminaire
EP3674605A1 (en) * 2018-12-25 2020-07-01 Self Electronics Co., Ltd. Light spot adjustment subassembly for a projection lamp

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191212852A (en) * 1912-05-31 1913-04-10 Frederick Cyril Jenkins Improvements in and relating to Signalling Apparatus.
US1738945A (en) * 1928-11-01 1929-12-10 Brenkert Karl Framing shutter
US2210554A (en) * 1939-01-17 1940-08-06 Charles L Beckman Spotlight
US2553094A (en) * 1947-06-21 1951-05-15 Ncr Co Floor lamp
GB847542A (en) * 1957-12-31 1960-09-07 Gen Electric Co Ltd Improvements in or relating to studio lights
US2944145A (en) * 1958-08-07 1960-07-05 Gen Motors Corp Dome and reading lamp assembly
US3069536A (en) * 1959-12-07 1962-12-18 Walter G Dion Light projector
US3140053A (en) * 1961-09-28 1964-07-07 Lowell Ross Light fixture
US3551033A (en) * 1967-07-03 1970-12-29 Mc Donnell Douglas Corp Quick change filter
GB1408385A (en) * 1971-09-15 1975-10-01 Hartridge Ltd Leslie Engine test equipment
DE7707291U1 (en) * 1977-03-09 1977-07-28 Bischl, Johann, 8000 Muenchen DEVICE FOR BLOCKING A LIGHT SOURCE
US4104709A (en) * 1977-04-11 1978-08-01 Applied Fiberoptics, Inc. Surgeons headlight with continuously variable spot size
DE2745397A1 (en) * 1977-10-08 1979-04-19 Leitz Ernst Gmbh LIGHT CONTROLLER FOR LIGHT GUIDE LUMINAIRES

Also Published As

Publication number Publication date
GB2036282B (en) 1982-06-16
JPS5926081B2 (en) 1984-06-23
GB2036282A (en) 1980-06-25
FR2431655A1 (en) 1980-02-15
IT1162344B (en) 1987-03-25
JPS5510778A (en) 1980-01-25
DE2927042A1 (en) 1980-01-24
FR2431655B1 (en) 1984-01-20
US4468720A (en) 1984-08-28

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